Apparatus for the manufacture of metal beadings.



T. G. & J. H. DAVIS,

APPARATUS FOR THE MANUFACTURE, OF METAL READINGS.

APPLlOATlON FILED MAR. 25, 1913.

1,101,416. Patented June 23,1914;

"Ian M 8 e S Q w u E i 5 3 Witnesses- Inventors W M@ y .dttorney,

UNITED STATES PATENT OFFICE.

THOMAS CHARLES DAVIS AND JOSEPH HENRY DAVIS, or LoNDoN, ENGLAND.

APPARATUS roia THE MANUFACTURE or, METAL READINGS:

Specification of Letters Patent.

Patented June 23, 1914.

Application filed March 25, 1918. Serial *No. 756,792,

To all whom it may concern Be it known that we, THOMAS CHARLES DAVIS and J OSEPH HENRY DAVIS, subjects of the King of Great Britain and Ireland, residing at James Yard, Warner Place, Hackney Road, London,.'N. 13., England, have invented certain new-and useful Improvements in and Relating to Apparatus for the Manufacture of Metal Beadings, of which the following is a specification.

This invention relates to apparatus for use in the manufacture of ornamental metal headings for fitting upon the bodies of motor vehicles, by which such goods are expeditiously and economically produced. It is usual to make such headings of an outer facing of thin strip sheet metal, such as brass, formed or drawn to the particular crosssectional trough-like shape desired and to back the facing strip with lead or other base metal or alloy of low melting point, while employing, as usual, a flux to secure complete contact of the base metal with the strip. I

According to the invention the base metal is melted within a receptacle from which the molten metal discharges under regulation through an orifice situated in the lower part thereof, and this receptacle is mounted upon a hot plate or heater to which heat is applied by such means as a Bunsen burner.

The apparatus comprises means to determine the position of the discharge orifice in relation to the trough or recess of the facing I strip as the molten base metal is discharged therein.

An apparatus constructed according to the invention is illustrated in sectional elevation in Figure 1 of the accompanying drawings, by way of example. Fig. 2 is a perspective view of a piece of the finished beading. Fig. 3 is a cross section on the line wm, Fig. 1.

In carrying the invention into efiect there is provided a hot plate or heater which conveniently consists of a hollow casing formed in two parts a b of which the upper part (1 serves to carry the receptacle 0 for the base metal, such as lead, or alloy and to supply the necessary heat for the melting, while the lower part 6, serves advantageously to carry the nozzle or conduit d for the delivery of the molten base metal or alloy and also as a hot plate for contact with the facing strip 9 and for maintaining the base metal or a'l loy molten while the facing strip passes beneath the casing.

The receptacle 0 is conveniently formed as a funnel having a flattened bottom 0 with a central aperture 0 adapted to register with a corresponding aperture a in the top plate or upper part a of the heater.

The delivery nozzle or conduit d is conveniently formed integrally with the lower plate or part b of the heater as an upstanding member of a massive cross-section which is relatively long with respect to its width, in order to form a body of high heat retaining capacity and at the same time to leave space at each side for the Bunsen burners and flames. The bore (2 of the nozzle or conduit is reduced in diameter toward" the the outlet end.

The receptacle 0 and the two parts of the heater are conveniently fixed together by a screwed bolt e or the like adapted to pass through the apertures c a respectively in the bottom of the receptacle 0 and the upper plate or part a of the heater and to engage a screw thread in the upper portion of'the bore d of the nozzle or conduit, the receptacle 0 being clamped imposition by a flange e on the bolt.

The bolt 6 is provided with a central bore e for the passage of the molten base metal or alloy, and the bore is provided at the upper end with a conical valveseating e for a regulating valve f formed at the lower extremity of a screwed spindle 1 which passes through and is carried by a transverse member 0 fitted to the receptacle 0 in any suitable manner. The valve spindle 1 may be provided at its upper end with a suit-able handle.

To the side Walls of the heater there is secured a holder h which serves to carry a Bunsen or other suitable heating burner a which is conveniently mounted upon a support j slidably fitting the side members of the holder h and capable of being adjusted in posit-ion thereon in any suitable manner to direct the flame of the burner into the interior of the heater to secure the best results. The lower plate or part a of the heater is advantageously provided with a number of ribs 6 whichserve to increase its capacity for retaining heat. The upper and lower plates or parts of the heater are advantageously perforated in at least two corresponding positions in the longitudinal plane of the bore of the nozzle or conduit to receive loosely fitting pins k which project through the lower plate of the heater and engage the trough or recess of the facing strip of the beading and serve to guide the apparatus as it is passed over the facing strip and at the same time to agitate the molten base metal or alloy after it has passed into the trough or recess of the facing stri Iii the manufacture of the beading bythe use of the apparatus according to the invention, the facing strip having been formed or drawn to the required cross-sectional shape, the base metal'ior alloy to be usedfor'" filling is melted in the receptacle 0 by the use of the burner z and, the facing strip being placed face downward, the workman, grasping the holder it, applies the apparatus and passes it along the facing strip, or draws the facing strip under the apparatus, theoutlet of the nozzle or conduit being maintained centrally over the facing strip by means of the guide pins. The molten metal or alloy is allowed to flow through the nozzle or conduit into the trough or recess of the facing strip under the regulation of the valve f, and the apparatus and strip are so held and moved relatively one to the other that the trough ,or recess is completely filled with the base metal, which is maintained in the molten state by contact with the hot lower plate or part b of the heater; afterward, and while the metalor alloy is still molten the fastening pins are placed in position. lVe employ any suitable flux in the use of the apparatus.

What we claim as our invention and desire to secure by Letters Patent is z :1. A metal melting apparatus for applying molten metal within grooved metal strips, consisting of a receptacle within which the metal is melted, a hot plate upon which the said receptacle is mounted, said hot plate having a port leading from thereceptacle to the under-face thereof, through which the molten metal passes out, means for applying heat to said hot plate, and

' means for maintaining the strip .in register with said port, substantially as described.

2. A metal melting apparatus for applying molten metal within grooved metal strips, consisting of a receptacle within which the metal is melted, a hot plate upon which the said receptacle is mounted, said hot plate having a port leading from the receptacle to the under-face thereof, through which the molten metal passes out, means for applying heat to said hot plate, and means for maintaining in register and agitating the molten base metal which flows into the trough or groove within the strip, substantially as described.

3. A metal melting apparatus for applying molten metal within grooved metal strips, consisting of a receptacle within which the metal is melted, a hot plate upon which the said receptacle is mounted, said hot plate having a port leading from the receptacle to the under-face thereof, through whichthe molten metal passes out, means for applying heat to said hot plate, and pins passing through the said hot plate and protruding beneath the under-face thereof, substantially as described.

4. A metal melting apparatus for applying molten metal within grooved metal strips and comprising a hot plate in which a port is provided through which the molten metal passes through the plate to the underface thereof, and means for maintaining the metal strip on the under-face of the said hot plate in register with the said port, substantially as described.

5. A metal melting apparatus for applying molten metal within grooved metal strips and comprising a hot plate in which a port is provided through which the molten metal passes through the plate to the underface thereof, means for maintaining the metal strip on the under-face of the said hot plate in register with the said port, and pins presence of,two subscribing witnesses.

. THOMAS CHARLES DAVIS.

JOSEPH HENRY DAVIS Witnesses: WILLIAM EDWARD EVANS, ROBERT OWEN -HUGHES. 

